Horse-power



JAMES A. STONE, OF ROCHESTER, NE7 YORK.

HORSE-POWER MACHINE.

Speccation of Letters Patent No. 21,032, dated July 27, 1858.

To all fui/0m t may concer/n.'

Be it known that I, JAMEs A. STONE, of the city of Rochester, in the county of Monroe and State of New York, have made and invented certain new and useful Improvements in Horse'Power or Machines to be Propelled by any Animal-Power; and I do hereby declare the following to be a full and accurate description of the same, reference being had to the accompanying drawings, making part of this specification, and to the letters of reference marked thereon, same letters referring to like parts in all the figures.

Of said drawings Figure l is a plan of my improved horse power. Fig. 2 is a vertical section of the same on line a b Fig. l. Fig. 3 is a plan of the base with the upper part removed, and Fig. 4 is a section on line c, CZ Fig. 3, the internal wheel I (not shown in Fig. 3) being also included.

The nature of the invention will be best understood from a detailed description of its construction and mode of operation which may be given as follows:

In the drawing (Fig. l) will be seen four boxes or pockets (e, e, e, 6,) into which are inserted the draft bars or levers to which the animal power is attached. One of these bars or levers is shown in dotted lines in Fig. l. The boxes or pockets are attached to a plate or frame (F) which revolves on the central vertical shaft (C) and is sup ported by the three rollers (R R It) which roll upon the internal gear-wheel (I) as hereafter described.

The frame (F) carries three cog wheels (lV, W, )VQ which are free to rotate upon the studs or short shafts (I), P, P), these pins or studs being attached at their upper ends by means of three nuts as shown while their lower ends are inserted into the ring A (Fig. 2) which is in turn supported by means of the bolt and pillar (B Fig. 2).

Attached to the wheels (WV, W, l/V) are the pinions (D Fig. 2) which are placed at such a distance from the center O as to gear accurately with the internal wheel This internal gear rests upon four pillars, as seen in the drawing and serves to strengthen and stiifen the base of the whole machine. The base is shown in section in Fig. t and in plan in Fig. 8 where it will be seen that the center is raised in the form of a grooved arch, so that although lightv -geared to the internal gear-wheel (I).

the weight of the superimliiosed structure especially as the abutments of said arch aretied (to use a technical expression) by the internal gear being attached to them by the four pillars as shown, the ties in this case being above instead of below the arch. But not only does this elevated' center serve to give an arched form to the frame and so promote its strength; it also enables us to use a very short central, vertical shaft If this shaft were long as it would be if the under frame were level, it would either have to be sustained at the top by an awkward and expensive contrivance or its strength would have to be greatly increased in order to resist the vibrations to which it would be subject. By the arrangement above described however, als well as owing to some other features presently to be set forth, this shaft may be made very short, and the whole machine greatly lightened.

Upon the central shaft as above described is placed the large bevel wheel (seen in sec tion in Fig. 2) and to this wheel is attached the central pinion (H). This pinion gears with the wheels (W W W) as seen in Fig. l, while the large bevel or crown wheel (M) drives the pinion (N) on the shaft (O) which conveys the motion where it is wanted. The elements of the machine being thus described the mode of operation is as follows:

The upper frame (F) and with it the wheels and pinions (W, 1),) being caused to revolve, the pinions (D) will revolve on their axis as they roll around, they being And as the angular motion of the wheels (lV W WV) must correspond with that of the pinions (D) the velocity of their peripheries will be much greater. This increased mo tion will therefore be imparted to the central pinion (I-I) attached to the large bevel wheel, this pinion (H) being less than the wheels (IV W IV) so as still further to increase the motion. The motion is thence communicated to the shaft (O) through the pinion (N) working in the wheel It will b-e at once seen that owing to the arrangement of parts aboveV described, the various strains which would otherwise be concentrated upon individual points are divided up and distributed so as not seriously to affect any single portion of the machine. Thus the strains upon the shaft (C) come equally from three opposite points and so tend to balance each other. While the Whole arrangement is such that very little friction can arise, owing partly to this equable distribution of strain and partly to the facility which is hereby afforded for the use of friction rollers. Thus the frame f being supported at its periphery by these rollers need not be so heavy as would Otherwise be required, which lessens both friction and weight, while the rollers being attached to and partaliing of the circular inotion of the upper frame have much less friction and twisting action than would exist if the reverse were the case.

(V, V,) are safety guards consisting of a l stud or pillar with a friction roller attached as represented so as to prevent all possibility of the frame (F) jumping oft' or getting displaced. These safety guards may be turned around if desired, so as to be out of the way and allow the frame (F) to be taken off.

The friction roller (X) is designated to keep the crown or bevel Wheel (M) at a proper depth of lock or gear, such an arrangement being requisite owing to the great diameter of said wheel.

Having thus described my invention what I claim therein as new and desire to secure by Letters Patent is- The construction of the base (Figs. l and 4) when combined with the Wheel l to form a trussed arch whereby not only is great strength secured but the length of the shaft (C) and its consequent liability to vibration is lessened.

JAMES A. STONE.

)Witnesses JOHN PLIM, PETER JOHNSON. 

